<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <!-- 基础校验
          el-form :model="表单对象" :rules="规则对象"
          el-form-item prop属性是使用哪条规则
          el-input v-model双向绑定
         -->
      <el-form ref="form" :model="form" :rules="rules">
        <el-form-item
          label="账号"
          prop="username"
        >
          <el-input v-model="form.username" />
        </el-form-item>

        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="form.password" type="password" />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="form.remerber">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" class="login_btn" @click="login">登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
const FORMDATA_KEY = 'form_key'
export default {
  name: 'Login',
  data() {
    return {
      form: {
        username: '',
        password: '',
        remerber: false
      },
      rules: {
        username: [
          { required: true, message: '请输入账号', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' }
        ]
      }
    }
  },
  mounted() {
    // 上班的时候不要做这样的功能 (忘记他 有可能泄露用户账号密码)
    // 从本地取账号密码
    const cacheFormStr = localStorage.getItem(FORMDATA_KEY)
    if (cacheFormStr) {
      const cacheForm = JSON.parse(cacheFormStr)
      this.form.username = cacheForm.username
      this.form.password = cacheForm.password
    }
  },
  methods: {
    login() {
      // valid 为true 才是表单校验通过
      this.$refs.form.validate(async(valid) => {
        if (valid) {
          const { username, password } = this.form
          await this.$store.dispatch('user/doLogin', { username, password })
          // 勾选了记住 存账号密码到本地
          if (this.form.remerber) {
            localStorage.setItem(FORMDATA_KEY, JSON.stringify({ username, password }))
          } else {
            localStorage.removeItem(FORMDATA_KEY)
          }
          this.$router.push('/')
        }
      })
    }
  }

}

</script>

<style scoped lang="scss">
  .login_body {
    display: flex;
  }
  .bg {
    width: 60vw;
    height: 100vh;
    background: url('~@/assets/login-bg.svg') no-repeat;
    background-position: right top;
    background-size: cover;
  }
  .box {
    margin: 200px 10% 0;
    flex: 1;
    .title {
      padding-bottom: 76px;
      font-size: 26px;
      font-weight: 500;
      color: #1e2023;
    }
    ::v-deep() {
      .ant-form-item {
        display: flex;
        margin-bottom: 62px;
        flex-direction: column;
      }
      .ant-form-item-label label {
        font-size: 16px;
        color: #8b929d;
      }
      .ant-input,
      .ant-input-password {
        border-radius: 8px;
      }
    }
  }
  .login_btn{
    width: 100%;
  }
</style>
